Scenario exercise Army Maj. Bernard Smith, director of the Alpha crew, goes through a scenario exercise with his crew inside a fire control node on the Missile Defense Complex at Fort Greely, Alaska, Sept. 26, 2017. A fire control node is manned at all times, so soldiers can fire a ground-based interceptor missile in case of an enemy rocket attack. Army photo by Sean Kimmons SHARE: Download: Full Size (3.8 MB) Credit: Sean Kimmons VIRIN: 170926-A-ZZ999-564.JPG Photo Gallery